20
CONDENSING GENERATORS
Wall-hung gas condensing modules
Scheme 5
: circuit with thermal module connected with heating system and DHW tank by means of hydraulic separator (the boiler pump
ensure only circulation in the primary).
1.
Globe valve
2.
Non-return valve
3.
Sanitary circulator
4.
Expansion vessel
5.
Safety valve
6. Discharge
7.
Pressure gauge
8.
Pressure switch
9.
Softener filter
10. Pressure reducer
11. Tank
12. Automatic bleed valve
13. Three way valve
14. Circulator
15. High-temperature system circulator
16. Tank circulator
SE External probe
F
High temperature system flow
R
High temperature system return
EAF Cold water inlet
UAC Domestic hot water outlet
Scheme 6
: circuit with thermal module connected with heating system and DHW tank with collector (DHW and heating simoultaneous
production). System to be installed only with low head pumps.
1.
Globe valve
2.
Non-return valve
3.
Sanitary circulator
4.
Expansion vessel
5.
Safety valve
6. Discharge
7.
Pressure gauge
8.
Pressure switch
9.
Softener filter
10. Pressure reducer
11. Tank
12. Automatic bleed valve
13. Three way valve
14. Circulator
15. High-temperature system circulator
16. Tank circulator
SE External probe
F
High temperature system flow
R
High temperature system return
EAF Cold water inlet
UAC Domestic hot water outlet
Domestic hot water and central heating circuits must be completed with expansion vessels of adequate capacity and suitable,
correctly-sized safety valves.
The discharge of safety valves and appliances must be connected to a suitable collection and disposal system. The choice of
system components and the method of their installation are left up to the heating engineer installing the system. Installers
must use their expertise to ensure proper installation and functioning in conformity to all applicable legislation.
Special supply/refill water must be conditioned using suitable treatment systems. It is prohibited to operate the thermal
module without water.
15
5
UAC
1 9 10 1
EAF
6
12
1
1
2
3
4
11
10 9
EAF
F
2
1
1
R
1
1
1
1
4
5
6
7
8
CONDEXA PRO
SE
6
13
14
10 9
EAF
1
1
1
5
6
7
8
CONDEXA PRO
SE
F
R
2
1
1
2
15
1
1
2
16
1
4
12
5
6
5
UAC
1 9 10 1
EAF
6
12
1
1
2
3
4
11
6
14
